Maybe I happened to stumble on a good place to start solving this, but having rather slogged my way through the last numerical, this one was much closer to plain sailing. My preconceptions about what the common feature might be were totally wrong, but it became clear at about the halfway point. Quite satisfying to solve, and I didn't need to resort to using a spreadsheet, just a calculator and Wolfram Alpha to make factorising the clues quicker! Now trying to work out what the significance of the title might be... Thank you Arden.
If in doubt with a Listener, put the title in an anagram solver.
I've got the anagram, but I'm confused about the rest of the puzzle. My possibilities for 1a and 2d don't fit together.
Must try harder.
I solved the title at the outset, and this confirmed my suspicions. Filling the grid wasn't too much of a slog, and the final highlighting step was an enjoyable challenge.